Add unit test recipe to the cookbook (#50236)
Add unit test recipe to the cookbook (#50236)

* Add unit test recipe to the cookbook
sharwell/roslyn,dotnet/roslyn,weltkante/roslyn,sharwell/roslyn,KevinRansom/roslyn,AlekseyTs/roslyn,diryboy/roslyn,dotnet/roslyn,shyamnamboodiripad/roslyn,tmat/roslyn,mgoertz-msft/roslyn,weltkante/roslyn,bartdesmet/roslyn,bartdesmet/roslyn,tannergooding/roslyn,tmat/roslyn,CyrusNajmabadi/roslyn,eriawan/roslyn,physhi/roslyn,sharwell/roslyn,CyrusNajmabadi/roslyn,tmat/roslyn,AmadeusW/roslyn,AlekseyTs/roslyn,wvdd007/roslyn,eriawan/roslyn,mgoertz-msft/roslyn,shyamnamboodiripad/roslyn,physhi/roslyn,KevinRansom/roslyn,physhi/roslyn,mgoertz-msft/roslyn,ErikSchierboom/roslyn,bartdesmet/roslyn,shyamnamboodiripad/roslyn,jasonmalinowski/roslyn,mavasani/roslyn,AmadeusW/roslyn,eriawan/roslyn,diryboy/roslyn,CyrusNajmabadi/roslyn,tannergooding/roslyn,jasonmalinowski/roslyn,ErikSchierboom/roslyn,AlekseyTs/roslyn,KevinRansom/roslyn,diryboy/roslyn,ErikSchierboom/roslyn,tannergooding/roslyn,wvdd007/roslyn,mavasani/roslyn,dotnet/roslyn,jasonmalinowski/roslyn,AmadeusW/roslyn,weltkante/roslyn,wvdd007/roslyn,mavasani/roslyn